Spring-motor.



H. F. SCHRAGE.

SPRING MOTOR.

APPLICATION FILED JULY 14. 1915.

1,228,97 5. Patented June 5,1917.

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H. F. SCHRAGE.

SPRING MOTOR. APPLICATION FILED JULY I4. 1915- 1,228,975.- Patented June 5, 1917.

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H. F. SCHRAGE.

SPRING MOTOR.

APPLICATION HLED JULY 14, 1915.

Patented June 5, 1917.

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HERMAN F. SCHRAGE, OF PALATINE, ILLINOIS.

SPRING-MOTOR.

Specification of Letters Patent.

Patented June 5, 1917.

Application filed July 14, 1915. Serial No. 39,789.

To all whom it may concern:

Be it known that I, HERMAN F. SCHRAGE, a citizen of the United States, residing at Palatine, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Spring-Motors, of which the following is a specification.

This invention relates to improvements in spring motors and its object is to produce spring driven mechanism that may be employed for a variety of light uses, running light machinery or the like at a minimum expense for operation. The machine may also be manufactured as a toy and operated for the instruction and amusement of society.

\Vith the foregoing and other objects in view the invention consists in the combination and arrangement of parts to be hereinafter fully described in the following specification, pointed out in the appended claims and illustrated in the accompanying drawings, which form a part of said specification and in which- Figure l is a plan view of my improved spring motor.

Fig. 2 is a vertical section in side elevation and is taken on line 2-2 of Fig. 1.

Fig. 3 is an end elevation, partly broken, to afford a better illustration.

Fig. 4: is a vertical sectional view of the crank shaft and its connections including the spring motor.

Fig. 5 is a side elevation of one of the telescoping drive shafts.

Fig. 6 is an enlarged fragmentary View, partly in section, of one of the telescoping drive shafts.

Fig. 7 is a cross section taken on line 7-7 of Fig. 6.

Fig. 8 is a cross section taken on line 88 of Fig. 6.

Like reference characters indicate corresponding parts throughout the several views.

The reference numeral 1 denotes the base of the frame of the machine connected by braces 2 and, in connection with the same,

supporting the standards 3. In suitable bearings 1 an intermediate shaft 5 is journaled whereon fly wheels 6, 6 are made fast and whereon large gear wheels 7, 7 are made fast that are connected by chains 8,8 with small gear wheels 9, 9 fast upon the crank or drive shaft 10 journaled in suitable bearings 11. The crank shaft 10 is provided with a removable cap 14 connected thereto by a key 15 and said cap is provided with the crank 16 whereby it may be manually rotated to wind the spring 12 which is terminally secured thereto and to an end beam 13 of the frame; by rotating the crank 16 in the opposite direction, after the spring is wound and the cap and shaft 10 connected again by the key 15, the machine may be started.

The intermediate shaft 5, further, is provided with gear wheels 17, 17 which are connected by chains 18, 18 with large gear wheels 19., 19 fast upon transmission shafts 20, 20 journaled in bearings 21 and said shafts 20, further, are provided with eccentrics 22, 22 that are connected by the telescoping shafts 23, 23 23 formed with terminal heads 24: pivotally carried by stub shafts 25 arranged in bearings 3 carried by the frame. One portion 23 of each shaft is square in cross section and is provided with a laterally disposed rack 26 which is intermittently in engagement with the oppositely disposed teeth of a cam gear 27 fast upon the intermediate shaft 5. Another portion of the shaft is round in cross section and composed of telescoping sections 23 23 positioned between the shaft head 21 and one end of the section 23 of the shaft. The section 23*, 23 is encircled by a stout return spring 28 which abuts the section 23 of the shaft and the head 2d and serves to yieldingly retain the telescoping sections in extended relation.

In operation the spring 12 is wound by the crank 16 after the key 15 is withdrawn. When the spring is wound the key is replaced and the mechanism may be started by manually rotating the crank in a direction to start the unwind of the spring. This operation will start the shaft 10 through gear wheels 9 and 7 and chains 8 will rotate the shaft 5 and this shaft will through the medium of gear wheels 17 and 19, and chains 18 rotate the shafts 20 together with the eccentrics 22 which may be belt-connected with the work to be driven.

The cam gears 27 will also rotate with the shaft 5 and as the teeth at each end of said cam gear alternately engage with the rack 26 they will drive the same and the shaft section 23 intermittently toward the bearings 3 telescoping the shaft section 23*, 23 and compressing the spring 28 at each revolution of said cam gears. This operation will also impart power to the eccentrics 22 and help rotate the shafts 20, 20. As soon as the teeth of one portion of the cam gears are out of engagement with the racks 26 and before the oppositely disposed teeth of those gears again get into rack-engaging pcsitionsthe stout springs 28 will extend the telescoping shaft portions 23%, 23 and im part additional power to the eccentrics 22.

an intermittent movement only imparted to shafts 20. V I

What is claimed is V V 1'. A spring motor comprising a frame, a drive shaft carried thereby, a driving spring for said drive shaft, anintermediate shaft, fly wheels carried by said intermediate shaft, work shafts, power transmission mechanism connecting said drive shaft and intermediate shaft, power transmission mechanism connecting said intermediate shaft and said work shafts, eccentrics carried by said work shaftsand means connecting said eccentrics and said intermediate shaft whereby power is transmitted directly and intermittently from the latter to the former members.

2. A spring motor comprising a frame, a drive shaft'carried thereby, a driving spring for said drive shaft, an intermediate shaft,

fly wheels carried thereby, work shafts,

power transmission mechanism connecting said drlve shaft and lntermedlate shaft, ec-

centrics carried by said work shafts and means connecting said intermediate shaft and work shafts whereby intermittent movement is imparted to the latter.

Copies of this patent may be obtained for 3. A spring motor comprisinga frame, a drive shaft carried thereby, a driving spring for said drive shaft, an intermediate shaft, fly wheels carried thereby, work shafts, power transmission mechanism connecting said drive shaft and said intermediate shaft, eccentrics carried by said work shafts, telescoping shafts carried' by said frame and connected to said eccentrics, springs carried by said telescopingshafts whereby they are yieldingly retained in extended or non-te1escoped position and means carried by said intermediate shaft for intermittent engagement with said telescoping shafts to telescope the same.

4c. 'A spring motor comprising a frame, a drive shaft carried thereby, a driving spring for said drive shaft, an intermediate shaft; fiy wheels carried thereby, work shafts,

power transmission mechanism connecting said drive'sh'aft and said intermediate shaft, eccentrics carried by said work shafts, telescoping shafts carried by said frame and connected to said eccentrics, racks carried by said telescoping shafts, springs carried by said telescoping shafts whereby they are yieldingly-retained in extended or non-telescoped position and cam gears fast on said intermediate shaft for intermittent engagement with said racks whereby said telescoping shafts are actuated.

In testimony that I claim the foregoing asmy own I have hereto'aifixed my signature in the presence of two subscribing witnesses.

HERMAN F. SOHRAGE.

Witnesses:

FRED. 'SOHRAGE,

' LOUIS SCI-IRAGE.

five cents each, by addressing the Commissioner of Patents, Washington, D; G. 

